EP0679199B1 - Alliage de type aluminium-silicium-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention - Google Patents
Alliage de type aluminium-silicium-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention Download PDFInfo
- Publication number
- EP0679199B1 EP0679199B1 EP95901489A EP95901489A EP0679199B1 EP 0679199 B1 EP0679199 B1 EP 0679199B1 EP 95901489 A EP95901489 A EP 95901489A EP 95901489 A EP95901489 A EP 95901489A EP 0679199 B1 EP0679199 B1 EP 0679199B1
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- European Patent Office
- Prior art keywords
- alloy
- quenching
- temperature
- hot rolling
- ageing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Revoked
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- -1 Aluminium-silicon-magnesium Chemical compound 0.000 title 1
- 229910000861 Mg alloy Inorganic materials 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- 238000010791 quenching Methods 0.000 claims description 15
- 230000000171 quenching effect Effects 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000005098 hot rolling Methods 0.000 claims description 9
- 238000003303 reheating Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000265 homogenisation Methods 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 3
- 229910018176 Al—(Mn, Fe)—Si Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 230000035800 maturation Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910018566 Al—Si—Mg Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
Definitions
- the invention relates to aluminum alloys of the Al-Si-Mg type with ductility. and improved stampability, used in the form of sheets or strips, as well as a process for obtaining them.
- the sheets or bands are particularly intended for stamping and in particular for automobile body.
- Mn is favorable to mechanical strength and to deformability; this action is sensitive beyond 0.1%; however, above 0.8% Mn, coarse compounds (Al, Mn, Fe) are formed which impair formability.
- Mg the elastic limit after curing of the coatings is too low; for values greater than 0.8%, the formability becomes insufficient and the maturation too rapid.
- Si content is less than 0.5%, the mechanical characteristics are too low; if Si> 1.3%, coarse primary compounds appear and impair formability.
- Cu content is greater than 0.9%, the corrosion resistance (intercrystalline) is insufficient.
- Fe content is greater than 0.5%, this results in coarse precipitation which is detrimental to formability.
- the method according to the invention comprising the casting operations, reheating, hot rolling and possibly cold rolling, dissolution and quenching, maturing and possibly surface coating and "cooking” thereof, is characterized in that the temperature of the reheating before hot rolling and the inlet temperature to the rolling mill hot is between 460 and 520 ° C.
- the temperature holding time is between 30 min and 24 h.
- the temperature at the end of hot rolling is preferably less than 400 ° C. and even 350 ° C.
- the dissolution is preferably carried out between 520 and 570 ° C. and in particular, between 550 and 570 ° C, for 5 min to 1 h.
- Average speed quenching temperature is preferably greater than 100 ° C / sec.
- a pass-through oven can be used.
- the alloy matures at room temperature and reaches a hardness stationary in about 15 days, state in which it is able to undergo formatting.
- the alloy may undergo tempering hardening during the baking treatment of the coating (around 180 ° C. for 30 min). It has however been noted that in the case of an alloy homogenized in a conventional manner, the practice of a pre-annealing between 70 and 150 ° C for 0.5 to 5 h after quenching leads to a significant increase in the coefficient d 'hardening n (after maturation) and a significant increase in the mechanical strength characteristics (after curing of the coatings).
- Figure 1 represents the evolutions of the coefficient of work hardening n with the matured state as a function of the elastic limit in the hardened state with and without pre-income, under the conditions shown in Example 2.
- the alloys were produced in ingots, 1.25 ⁇ 0.6 m 2 in section, scalped, reheated (rising speed: 46 ° C / h; holding temperature: 480 ° C) and hot rolled with an inlet temperature of 480 ° C and an outlet temperature of 310 ° C to a thickness of 4mm, then cold rolled to a thickness of 1.2mm.
- the biaxial expansion test consists of deforming a sheet 300x300x1.2 mm maintained by a circular blank with a diameter of 250 mm by pressure hydraulic. The deformation is measured at the top of the dome formed. It can be seen that the alloy according to the invention exhibits improved formability characteristics compared to those of alloys obtained according to the prior art. There is also a slight hardening which is not specifically sought in the invention.
- the Mn precipitates have a median size of 0.06 ⁇ m with a maximum dimension of 0.18 ⁇ m.
- Alloy Composition weight%) Mn Mg Yes Cu Fe AT 0.1 0.35 0.9 0.1 0.25 B 0.4 0.45 0.9 0.1 0.25 VS 0.4 0.4 1.1 0.4 0.25 Range Reheating Dissolution State (T4)
- Speed Maintenance 1 46 ° C / h 1h at 580 ° C 30 sec at 550 ° C 15 days at 20 ° C 2 (claimed) 46 ° C / h 2h at 480 ° C 30 min at 550 ° C 15 days at 20 ° C Alloy Range R 0.2, (MPa) Rm (MPa) AT % A% distributed ⁇ f (%) AT 1 105 220 25 19 52 B 1 115 230 29 22 59 B 2 120 235 31 23 62 VS 1 135 250 28 21 53 VS* 2 140 255 30 23 60
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Steel (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Metal Rolling (AREA)
Description
Pour des valeurs de Mg inférieures à 0,25%, la limite élastique après cuisson des revêtements est trop faible; pour les valeurs supérieures à 0,8%, la formabilité devient insuffisante et la maturation trop rapide.
Si la teneur en Si est inférieure à 0,5%, les caractéristiques mécaniques sont trop faibles; si Si > 1,3%, des composés primaires grossiers apparaissent et nuisent à la formabilité.
Si la teneur en Cu est supérieure à 0,9%, la tenue à la corrosion (intercristalline) est insuffisante.
Si la teneur en Fe est supérieure à 0,5%, il en résulte une précipitation grossière néfaste à la formabilité.
- coulée d'un alliage de composition donnée sous forme de lingots ou de bandes
- homogénéisation éventuelle
- réchauffage et laminage à chaud
- laminage à froid
- mise en solution
- mise en forme à froid à l'état T4
- revêtement superficiel éventuel et sa "cuisson", par exemple une peinture (laquelle contribue au durcissement de l'alliage) -voir par exemple US 4614552, US 4784921, US 4840852, WO 87/02712.
La température de fin de laminage à chaud est de préférence inférieure à 400°C et même 350°C.
Le coefficient d'écrouissage est égal à n = d(Lnσ)/dε, σ étant la contrainte de Von Misès et ε la déformation équivalente de Von Misès pour des déformations en traction comprises entre 5 et 20% (ε=Ln (1/1o)).
| Alliage | Composition (poids %) | ||||
| Mn | Mg | Si | Cu | Fe | |
| A | 0,1 | 0,35 | 0,9 | 0,1 | 0,25 |
| B | 0,4 | 0,45 | 0,9 | 0,1 | 0,25 |
| C | 0,4 | 0,4 | 1,1 | 0,4 | 0,25 |
| Gamme | Réchauffage | Mise en solution | Etat (T4) | |
| Vitesse | Maintien | |||
| 1 (témoin) | 46°C/h | 1h à 580°C | 30 sec à 550°C | 15 j à 20°C |
| 2 (revendiquée) | 46°C/h | 2h à 480°C | 30 min à 550°C | 15 j à 20°C |
| Alliage | Gamme | R 0, 2 (MPa) | Rm (MPa) | A % | A % réparti | ε f (%) |
| A | 1 | 105 | 220 | 25 | 19 | 52 |
| B | 1 | 115 | 230 | 29 | 22 | 59 |
| B | 2 | 120 | 235 | 31 | 23 | 62 |
| C | 1 | 135 | 250 | 28 | 21 | 53 |
| C* | 2 | 140 | 255 | 30 | 23 | 60 |
Si: 1,08 Fe: 0,10 Cu : 0,05 Mn: 0,38 Mg: 0,40 a été coulé en plateaux de 1,25 x 0,6 m2, homogénéisé à 520°C pendant 33 h, laminé à chaud jusqu'à 4 mm d'épaisseur entre 494 et 304°C, laminé à froid jusqu'à 1,2 mm d'épaisseur, mis en solution dans un four à air avec une montée en 30 min à 560°C et maintien de 5 min à cette température et trempe à l'eau à 20°C.
10 min après la trempe, des échantillons ont subi un pré-revenu de 2 h à 100°C, d'autres échantillons de comparaison n'étant pas traités.
Les essais de traction ont été effectués 14 jours après la trempe et certains échantillons ont été contrôlés après un revenu de 30 min à 180°C, simulant les conditions de cuisson des revêtements.
On peut constater les effets bénéfiques du pré-revenu sur le coefficient n à l'état mûri (T4) et sur les caractéristiques mécaniques après cuisson des revêtements.
| Vitesse de trempe (°C/sec) | ETAT T4 | 30 min à 180°C R 0,2 | |||
| R 0,2 (MPa) | Rm (MPa) | A (%) | Au (%) | (MPa) | |
| 6 | 111 | 247 | 30,7 | 22,2 | 120 |
| 20 | 117 | 251 | 30,9 | 23,4 | 136 |
| 580 | 140 | 271 | 32,4 | 24,4 | 161 |
Claims (11)
- Alliage d'aluminium pour bandes et tôles destinées à l'emboutissage caractérisé en ce qu'il contient en poids % :de 0,15 à 0,65 Mnde 0,3 à 0,6 Mgde 0,7 à 1,2 Side 0,1 à 0,5 Cujusqu'à 0,4 Fe.jusqu'à 0,05 (chacun et 0,15 (au total) d'autres élémentsreste Al
- Alliage selon la revendication 1 caractérisé en ce qu'il contient :de 0,25 à 0,45 Mnde 0,3 à 0,5 Mgde 0,85 à 1,10 Side 0,1 à 0,3 Oujusqu'à 0,3 Fe.
- Alliage suivant l'une des revendications 1 à 3 caractérisé en ce qu'il contient des précipités au Mn, type A1 (Mn, Fe) Si, dont la taille médiane est inférieure à 0,07 µm et la taille maximale inférieure à 0,20 µm.
- Méthode d'obtention de tôles ou bandes en alliage d'Al suivant l'une des revendications 1 à 3, comportant un réchauffage sans homogénéisation et un laminage à chaud (et éventuellement à froid), une mise en solution et trempe et une mâturation à la température ambiante, caractérisée en ce que la température de réchauffage et de début de laminage à chaud est comprise entre 460 et 520°C.
- Méthode selon la revendication 4, caractérisée en ce que la durée de maintien à la température est comprise entre 30 min et 24 h.
- Méthode selon l'une des revendications 4 ou 5, caractérisée en ce que la vitesse de montée en température est comprise entre 10°C/h et 150°C/h.
- Méthode selon l'une des revendications 4 à 6, caractérisée en ce que la température de fin de laminage à chaud est inférieure à 400°C, et de préférence inférieure à 350°C.
- Méthode selon l'une des revendications 4 à 7, caractérisée en ce que la mise en solution a lieu entre 520 et 570°C, pendant 5 min à 1 h.
- Méthode selon l'une des revendications 4 à 8, caractérisée en ce que la mâturation à la température ambiante est au moins de 15 jours.
- Méthode d'obtention de tôles ou bandes en alliage d'Al suivant l'une des revendications 1 à 3 comportant au moins une homogénéisation ou un réchauffage des lingots, un laminage à chaud (et éventuellement à froid), une mise en solution et trempe, une mâturation, une mise en forme, et un traitement de cuisson des revêtements, caractérisée en ce qu'un pré-revenu entre 70 et 150°C d'une durée de 0,5 à 5 h est pratiqué entre la trempe et la mâturation.
- Méthode d'obtention d'une tôle ou bande d'alliage d'Al suivant la revendication 10 caractérisée en ce que la vitesse moyenne de refroidissement lors de la trempe est supérieure à 100° C/sec.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9313966 | 1993-11-17 | ||
| FR9313966A FR2712605B1 (fr) | 1993-11-17 | 1993-11-17 | Procédé d'obtention d'alliages type Al-Si-Mg à ductilité et emboutissabilité améliorées et produit ainsi obtenu. |
| FR9401603A FR2713664B1 (fr) | 1993-11-17 | 1994-02-08 | Alliage type Al-Si-Mg à ductilité et emboutissabilité améliorées et procédé d'obtention. |
| FR9401603 | 1994-02-08 | ||
| PCT/FR1994/001330 WO1995014113A1 (fr) | 1993-11-17 | 1994-11-15 | Alliage de type aluminium-silicon-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0679199A1 EP0679199A1 (fr) | 1995-11-02 |
| EP0679199B1 true EP0679199B1 (fr) | 1999-06-02 |
Family
ID=26230749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95901489A Revoked EP0679199B1 (fr) | 1993-11-17 | 1994-11-15 | Alliage de type aluminium-silicium-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0679199B1 (fr) |
| JP (1) | JPH08505904A (fr) |
| KR (1) | KR960700353A (fr) |
| BR (1) | BR9406554A (fr) |
| CA (1) | CA2152402C (fr) |
| DE (1) | DE69418855T2 (fr) |
| FR (1) | FR2713664B1 (fr) |
| WO (1) | WO1995014113A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267922B1 (en) | 1995-09-19 | 2001-07-31 | Alcan International Limited | Precipitation-hardened aluminum alloys for automotive structural applications |
| DE102005045340B4 (de) * | 2004-10-05 | 2010-08-26 | Aleris Aluminum Koblenz Gmbh | Verfahren zum Wärmebehandeln eines Aluminiumlegierungselements |
| EP3967784A4 (fr) * | 2019-05-08 | 2022-08-10 | Changshu Synergy Automobile Parts Co., Ltd. | Matériau en alliage et procédé de production associé |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH688379A5 (de) * | 1994-11-29 | 1997-08-29 | Alusuisse Lonza Services Ag | Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi |
| FR2742165B1 (fr) * | 1995-12-12 | 1998-01-30 | Pechiney Rhenalu | Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite |
| FR2748035B1 (fr) * | 1996-04-29 | 1998-07-03 | Pechiney Rhenalu | Alliage aluminium-silicium-magnesium pour carrosserie automobile |
| WO1997047779A1 (fr) * | 1996-06-14 | 1997-12-18 | Aluminum Company Of America | Tole laminee en alliage d'aluminium a haute formabilite |
| AU4314697A (en) * | 1996-09-30 | 1998-04-24 | Alcan International Limited | Aluminium alloy for rolled product process |
| JP3266099B2 (ja) | 1998-03-27 | 2002-03-18 | 株式会社神戸製鋼所 | アルミニウム合金製ドアビーム |
| JP4101749B2 (ja) | 2001-07-23 | 2008-06-18 | コラス・アルミニウム・バルツプロドウクテ・ゲーエムベーハー | 溶接可能な高強度Al−Mg−Si合金 |
| PT1316623E (pt) * | 2001-11-28 | 2007-12-12 | Hydro Aluminium Deutschland | Processo para produzir produtos em rolo em liga de alumínio |
| DE10324452B4 (de) * | 2002-07-01 | 2010-05-06 | Aleris Aluminum Duffel Bvba | AI-Mg-Si-Legierungsblech |
| SE0203009D0 (sv) * | 2002-10-14 | 2002-10-14 | Sapa Heat Transfer Ab | High strenth aluminium fin material for brazing |
| US7491278B2 (en) | 2004-10-05 | 2009-02-17 | Aleris Aluminum Koblenz Gmbh | Method of heat treating an aluminium alloy member and apparatus therefor |
| CN103189534B (zh) | 2010-11-05 | 2016-03-23 | 阿莱利斯铝业迪弗尔私人有限公司 | 由铝合金产品制成的成型汽车部件及其制造方法 |
| FR3065013B1 (fr) * | 2017-04-06 | 2020-08-07 | Constellium Neuf-Brisach | Procede ameliore de fabrication de composant de structure de caisse automobile |
| EP3622096B1 (fr) | 2017-05-11 | 2021-09-22 | Aleris Aluminum Duffel BVBA | Procédé de fabrication d'un produit en feuille laminé en alliage al-si-mg ayant une excellente formabilité |
| EP4276214A3 (fr) | 2019-03-13 | 2024-04-24 | Novelis Inc. | Alliages d'aluminium durcissables par vieillissement et à formabilité élevée, feuille monolithique fabriquée à partir de ces derniers et produit en alliage d'aluminium plaqué la comprenant |
| JP2023536096A (ja) * | 2020-07-31 | 2023-08-23 | アーコニック テクノロジーズ エルエルシー | 新規の6xxxアルミニウム合金およびその製造方法 |
| WO2024186359A1 (fr) * | 2023-03-07 | 2024-09-12 | Novelis Inc. | Alliages d'aluminium à haute teneur en recyclage pour peinture d'automobile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143472A (en) * | 1981-03-02 | 1982-09-04 | Sumitomo Light Metal Ind Ltd | Manufacture of aluminum alloy sheet for forming |
| US4589932A (en) * | 1983-02-03 | 1986-05-20 | Aluminum Company Of America | Aluminum 6XXX alloy products of high strength and toughness having stable response to high temperature artificial aging treatments and method for producing |
| US4614552A (en) * | 1983-10-06 | 1986-09-30 | Alcan International Limited | Aluminum alloy sheet product |
| FR2601040B1 (fr) * | 1986-07-07 | 1988-09-02 | Cegedur | Alliage d'aluminium chaudronnable et soudable et son procede de fabrication |
| FR2642436B1 (fr) * | 1988-12-21 | 1991-06-14 | Pechiney Rhenalu | Alliage d'a1 contenant essentiellement du si, du mg et du cu pour emboutissage |
| JPH036348A (ja) * | 1989-06-03 | 1991-01-11 | Kobe Steel Ltd | 化成処理性に優れた自動車パネル用アルミニウム合金及びその製造方法 |
| CH685707A5 (de) * | 1991-12-16 | 1995-09-15 | Alusuisse Lonza Services Ag | Karosserieblech. |
-
1994
- 1994-02-08 FR FR9401603A patent/FR2713664B1/fr not_active Expired - Fee Related
- 1994-11-15 EP EP95901489A patent/EP0679199B1/fr not_active Revoked
- 1994-11-15 JP JP7514256A patent/JPH08505904A/ja active Pending
- 1994-11-15 WO PCT/FR1994/001330 patent/WO1995014113A1/fr not_active Ceased
- 1994-11-15 DE DE69418855T patent/DE69418855T2/de not_active Revoked
- 1994-11-15 KR KR1019950702814A patent/KR960700353A/ko not_active Withdrawn
- 1994-11-15 CA CA002152402A patent/CA2152402C/fr not_active Expired - Fee Related
- 1994-11-15 BR BR9406554A patent/BR9406554A/pt not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267922B1 (en) | 1995-09-19 | 2001-07-31 | Alcan International Limited | Precipitation-hardened aluminum alloys for automotive structural applications |
| DE102005045340B4 (de) * | 2004-10-05 | 2010-08-26 | Aleris Aluminum Koblenz Gmbh | Verfahren zum Wärmebehandeln eines Aluminiumlegierungselements |
| EP3967784A4 (fr) * | 2019-05-08 | 2022-08-10 | Changshu Synergy Automobile Parts Co., Ltd. | Matériau en alliage et procédé de production associé |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0679199A1 (fr) | 1995-11-02 |
| FR2713664B1 (fr) | 1996-05-24 |
| JPH08505904A (ja) | 1996-06-25 |
| CA2152402C (fr) | 2003-09-23 |
| DE69418855D1 (de) | 1999-07-08 |
| KR960700353A (ko) | 1996-01-19 |
| DE69418855T2 (de) | 1999-10-07 |
| FR2713664A1 (fr) | 1995-06-16 |
| WO1995014113A1 (fr) | 1995-05-26 |
| CA2152402A1 (fr) | 1995-05-26 |
| BR9406554A (pt) | 1996-02-06 |
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